import auth from '@/plugins/auth';
import router, { constantRoutes, dynamicRoutes } from '@/router';
import { getRouters } from '@/api/menu';
import Layout from '@/layout/index';
import { frontRoutes } from '@/router/frontRoute';
import ParentView from '@/components/ParentView';
import InnerLink from '@/layout/components/InnerLink';


// 匹配views里面所有的.vue文件
const modules = import.meta.glob('./../../views/**/*.vue');
const VITE_ROUTE_LOCAL = import.meta.env.VITE_ROUTE_LOCAL
const usePermissionStore = defineStore('permission', {
    state: () => ({
        routes: [],
        addRoutes: [],
        defaultRoutes: [],
        topbarRouters: [],
        sidebarRouters: []
    }),
    actions: {
        setRoutes (routes) {
            this.addRoutes = routes;
            this.routes = constantRoutes.concat(routes);
        },
        setDefaultRoutes (routes) {
            this.defaultRoutes = constantRoutes.concat(routes);
        },
        setTopbarRoutes (routes) {
            this.topbarRouters = routes;
        },
        setSidebarRouters (routes) {
            this.sidebarRouters = routes;
        },
        generateLocalRoutes (roles) {
            this.setSidebarRouters(constantRoutes);
        },
        generateRoutes (roles) {
            if (VITE_ROUTE_LOCAL) {

                return new Promise(resolve => {
                    const sdata = JSON.parse(JSON.stringify(frontRoutes));
                    const rdata = JSON.parse(JSON.stringify(frontRoutes));
                    const defaultData = JSON.parse(JSON.stringify(frontRoutes));
                    const sidebarRoutes = filterAsyncRouter(sdata);
                    const rewriteRoutes = filterAsyncRouter(rdata, false, true);
                    const defaultRoutes = filterAsyncRouter(defaultData);

                    const asyncRoutes = filterDynamicRoutes(dynamicRoutes);
                    asyncRoutes.forEach(route => {
                        router.addRoute(route);
                    });
                    this.setRoutes(rewriteRoutes);
                    this.setSidebarRouters(constantRoutes.concat(sidebarRoutes));
                    this.setDefaultRoutes(sidebarRoutes);
                    this.setTopbarRoutes(defaultRoutes);
                    resolve(rewriteRoutes);

                })
            } else {
                return new Promise(resolve => {
                    // 向后端请求路由数据
                    getRouters().then(res => {
                        const sdata = JSON.parse(JSON.stringify(res.data));
                        const rdata = JSON.parse(JSON.stringify(res.data));
                        const defaultData = JSON.parse(JSON.stringify(res.data));
                        const sidebarRoutes = filterAsyncRouter(sdata);
                        const rewriteRoutes = filterAsyncRouter(rdata, false, true);
                        const defaultRoutes = filterAsyncRouter(defaultData);
                        const asyncRoutes = filterDynamicRoutes(dynamicRoutes);
                        asyncRoutes.forEach(route => {
                            router.addRoute(route);
                        });
                        this.setRoutes(rewriteRoutes);
                        this.setSidebarRouters(constantRoutes.concat(sidebarRoutes));
                        this.setDefaultRoutes(sidebarRoutes);
                        this.setTopbarRoutes(defaultRoutes);
                        resolve(rewriteRoutes);
                    });
                });
            }

        }
    }
});

// 遍历后台传来的路由字符串，转换为组件对象
function filterAsyncRouter (asyncRouterMap, lastRouter = false, type = false) {
    return asyncRouterMap.filter(route => {
        if (type && route.children) {
            route.children = filterChildren(route.children);
        }
        if (route.component) {
            // Layout ParentView 组件特殊处理
            if (route.component === 'Layout') {
                route.component = Layout;
            } else if (route.component === 'ParentView') {
                route.component = ParentView;
            } else if (route.component === 'InnerLink') {
                route.component = InnerLink;
            } else {
                route.component = loadView(route.component);
            }
        }
        if (route.children != null && route.children && route.children.length) {
            route.children = filterAsyncRouter(route.children, route, type);
        } else {
            delete route['children'];
            delete route['redirect'];
        }
        return true;
    });
}

function filterChildren (childrenMap, lastRouter = false) {
    var children = [];
    childrenMap.forEach((el, index) => {
        if (el.children && el.children.length) {
            if (el.component === 'ParentView' && !lastRouter) {
                el.children.forEach(c => {
                    c.path = el.path + '/' + c.path;
                    if (c.children && c.children.length) {
                        children = children.concat(filterChildren(c.children, c));
                        return;
                    }
                    children.push(c);
                });
                return;
            }
        }
        if (lastRouter) {
            el.path = lastRouter.path + '/' + el.path;
        }
        children = children.concat(el);
    });
    return children;
}

// 动态路由遍历，验证是否具备权限
export function filterDynamicRoutes (routes) {
    const res = [];
    routes.forEach(route => {
        if (route.permissions) {
            if (auth.hasPermiOr(route.permissions)) {
                res.push(route);
            }
        } else if (route.roles) {
            if (auth.hasRoleOr(route.roles)) {
                res.push(route);
            }
        }
    });
    return res;
}

export const loadView = view => {
    let res;
    for (const path in modules) {
        const dir = path.split('views/')[1].split('.vue')[0];
        if (dir === view) {
            res = () => modules[path]();
        }
    }
    return res;
};

export default usePermissionStore;
